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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* This file contains the libchip configuration information
* to instantiate the libchip driver for the serial ports.
*/
/*
* COPYRIGHT (c) 1989-2012.
* On-Line Applications Research Corporation (OAR).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <unistd.h> /* write */
#include <bsp.h>
#include <libchip/serial.h>
#include <libchip/ns16550.h>
#include <rtems/pci.h>
#include <bsp/irq.h>
#if 1
#define COM_CONSOLE_FUNCTIONS &ns16550_fns_polled
#else
#define COM_CONSOLE_FUNCTIONS &ns16550_fns
#endif
/*
* Base IO for UART
*/
#define COM1_BASE_IO 0x3F8
#define COM2_BASE_IO 0x3E8
// #define CLOCK_RATE 368640
#define CLOCK_RATE (115200 * 16)
#define COM_IO_BASE_ADDRESS (0xa0000000UL | 0x18000000UL)
static uint8_t com_get_register(uintptr_t addr, uint8_t i);
static void com_set_register(uintptr_t addr, uint8_t i, uint8_t val);
static uint8_t tty2_get_register(uintptr_t addr, uint8_t i);
static void tty2_set_register(uintptr_t addr, uint8_t i, uint8_t val);
uint8_t com_get_register(uintptr_t addr, uint8_t i)
{
uint8_t val;
volatile uint8_t *ptr;
ptr = (volatile uint8_t *) COM_IO_BASE_ADDRESS;
ptr += addr;
ptr += i;
val = *ptr;
return val;
}
void com_set_register(uintptr_t addr, uint8_t i, uint8_t val)
{
volatile uint8_t *ptr;
ptr = (volatile uint8_t *) COM_IO_BASE_ADDRESS;
ptr += addr;
ptr += i;
*ptr = val;
}
uint8_t tty2_get_register(uintptr_t addr, uint8_t i)
{
uint8_t val;
volatile uint8_t *ptr;
ptr = (volatile uint8_t *) COM_IO_BASE_ADDRESS;
ptr += addr;
ptr += (i * 8);
val = *ptr;
return val;
}
void tty2_set_register(uintptr_t addr, uint8_t i, uint8_t val)
{
volatile uint8_t *ptr;
ptr = (volatile uint8_t *) COM_IO_BASE_ADDRESS;
ptr += addr;
ptr += (i * 8);
*ptr = val;
}
console_tbl Console_Configuration_Ports[] = {
{
"/dev/tty0", /* sDeviceName */
SERIAL_NS16550, /* deviceType */
COM_CONSOLE_FUNCTIONS, /* pDeviceFns */
NULL, /* deviceProbe, assume it is there */
NULL, /* pDeviceFlow */
16, /* ulMargin */
8, /* ulHysteresis */
(void *) 9600, /* Baud Rate */ /* pDeviceParams */
COM1_BASE_IO, /* ulCtrlPort1 */
0x00000000, /* ulCtrlPort2 */
COM1_BASE_IO, /* ulDataPort */
com_get_register, /* getRegister */
com_set_register, /* setRegister */
NULL,/* unused */ /* getData */
NULL,/* unused */ /* setData */
CLOCK_RATE, /* ulClock */
MALTA_IRQ_TTY0 /* ulIntVector -- base for port */
},
{
"/dev/tty1", /* sDeviceName */
SERIAL_NS16550, /* deviceType */
COM_CONSOLE_FUNCTIONS, /* pDeviceFns */
NULL, /* deviceProbe, assume it is there */
NULL, /* pDeviceFlow */
16, /* ulMargin */
8, /* ulHysteresis */
(void *) 9600, /* Baud Rate */ /* pDeviceParams */
COM2_BASE_IO, /* ulCtrlPort1 */
0x00000000, /* ulCtrlPort2 */
COM2_BASE_IO, /* ulDataPort */
com_get_register, /* getRegister */
com_set_register, /* setRegister */
NULL,/* unused */ /* getData */
NULL,/* unused */ /* setData */
CLOCK_RATE, /* ulClock */
MALTA_IRQ_TTY1 /* ulIntVector -- base for port */
},
{
"/dev/tty2", /* sDeviceName */
SERIAL_NS16550, /* deviceType */
COM_CONSOLE_FUNCTIONS, /* pDeviceFns */
NULL, /* deviceProbe, assume it is there */
NULL, /* pDeviceFlow */
16, /* ulMargin */
8, /* ulHysteresis */
(void *) 9600, /* Baud Rate */ /* pDeviceParams */
0, /* IGNORED */ /* ulCtrlPort1 */
0, /* IGNORED */ /* ulCtrlPort2 */
0, /* IGNORED */ /* ulDataPort */
tty2_get_register, /* getRegister */
tty2_set_register, /* setRegister */
NULL,/* unused */ /* getData */
NULL,/* unused */ /* setData */
CLOCK_RATE, /* ulClock */
MALTA_CPU_INT2 /* ulIntVector -- base for port */
},
};
/*
* Define a variable that contains the number of statically configured
* console devices.
*/
unsigned long Console_Configuration_Count = \
(sizeof(Console_Configuration_Ports)/sizeof(console_tbl));
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